[Plugin: SS Quiz] Previous button & Read from DB

Hi,

Two questions and help would be greatly appreciated.

1. Is it possible to have previous button
2. Can I read questions and answers from database instead of creating in UI.

http://ww.wp.xz.cn/support/plugin/ssquiz

Thanks a lot.

Cheers

http://ww.wp.xz.cn/extend/plugins/ssquiz/